added bootstrap 3.0.0 to the project tree
using bootstrap 3

moved the exercise list into a second column
hide the exercise list on narrow widths
error section changed to warning, because of change in bootstrap
make the non-index-before.html from a real fragment file
navbar with the index link and execise links
make the non-index-before.html from a real fragment file
navbar with the index link and execise links
reading data from heroku deployment
Merge branch 'dev' of github.com:iloveponies/120-hour-epic-sax-marathon into dev

Conflicts:
	js/exercise-list.js